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<div class="title">kd/cuda/kd_context.h</div>  </div>
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<a href="kd__context_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
<a name="l00002"></a>00002 <span class="comment"> * Copyright (c) 2010-2011, NVIDIA Corporation</span>
<a name="l00003"></a>00003 <span class="comment"> * All rights reserved.</span>
<a name="l00004"></a>00004 <span class="comment"> *</span>
<a name="l00005"></a>00005 <span class="comment"> * Redistribution and use in source and binary forms, with or without</span>
<a name="l00006"></a>00006 <span class="comment"> * modification, are permitted provided that the following conditions are met:</span>
<a name="l00007"></a>00007 <span class="comment"> *   * Redistributions of source code must retain the above copyright</span>
<a name="l00008"></a>00008 <span class="comment"> *     notice, this list of conditions and the following disclaimer.</span>
<a name="l00009"></a>00009 <span class="comment"> *   * Redistributions in binary form must reproduce the above copyright</span>
<a name="l00010"></a>00010 <span class="comment"> *     notice, this list of conditions and the following disclaimer in the</span>
<a name="l00011"></a>00011 <span class="comment"> *     documentation and/or other materials provided with the distribution.</span>
<a name="l00012"></a>00012 <span class="comment"> *   * Neither the name of NVIDIA Corporation nor the</span>
<a name="l00013"></a>00013 <span class="comment"> *     names of its contributors may be used to endorse or promote products</span>
<a name="l00014"></a>00014 <span class="comment"> *     derived from this software without specific prior written permission.</span>
<a name="l00015"></a>00015 <span class="comment"> *</span>
<a name="l00016"></a>00016 <span class="comment"> * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS &quot;AS IS&quot; AND</span>
<a name="l00017"></a>00017 <span class="comment"> * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED</span>
<a name="l00018"></a>00018 <span class="comment"> * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE</span>
<a name="l00019"></a>00019 <span class="comment"> * DISCLAIMED. IN NO EVENT SHALL &lt;COPYRIGHT HOLDER&gt; BE LIABLE FOR ANY</span>
<a name="l00020"></a>00020 <span class="comment"> * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES</span>
<a name="l00021"></a>00021 <span class="comment"> * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;</span>
<a name="l00022"></a>00022 <span class="comment"> * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND</span>
<a name="l00023"></a>00023 <span class="comment"> * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT</span>
<a name="l00024"></a>00024 <span class="comment"> * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS</span>
<a name="l00025"></a>00025 <span class="comment"> * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.</span>
<a name="l00026"></a>00026 <span class="comment"> */</span>
<a name="l00027"></a>00027 
<a name="l00032"></a>00032 <span class="preprocessor">#pragma once</span>
<a name="l00033"></a>00033 <span class="preprocessor"></span>
<a name="l00034"></a>00034 <span class="preprocessor">#include &lt;nih/basic/types.h&gt;</span>
<a name="l00035"></a>00035 
<a name="l00036"></a>00036 <span class="keyword">namespace </span>nih {
<a name="l00037"></a>00037 <span class="keyword">namespace </span>cuda {
<a name="l00038"></a>00038 
<a name="l00043"></a>00043 
<a name="l00044"></a>00044 
<a name="l00045"></a>00045 
<a name="l00046"></a><a class="code" href="structnih_1_1cuda_1_1_kd__context.html">00046</a> <span class="keyword">struct </span><a class="code" href="structnih_1_1cuda_1_1_kd__context.html">Kd_context</a>
<a name="l00047"></a>00047 {
<a name="l00049"></a><a class="code" href="structnih_1_1cuda_1_1_kd__context_1_1_context.html">00049</a>     <span class="keyword">struct </span><a class="code" href="structnih_1_1cuda_1_1_kd__context_1_1_context.html" title="Cuda accessor struct.">Context</a>
<a name="l00050"></a>00050     {
<a name="l00051"></a>00051         NIH_HOST_DEVICE <a class="code" href="structnih_1_1cuda_1_1_kd__context_1_1_context.html" title="Cuda accessor struct.">Context</a>() {}
<a name="l00052"></a>00052         NIH_HOST_DEVICE <a class="code" href="structnih_1_1cuda_1_1_kd__context_1_1_context.html" title="Cuda accessor struct.">Context</a>(<a class="code" href="structnih_1_1_kd__node.html">Kd_node</a>* nodes, uint2* leaves, uint2* ranges) :
<a name="l00053"></a>00053             <a class="code" href="structnih_1_1cuda_1_1_kd__context_1_1_context.html#a2581fa4e72d9795595bcf20af9f67957" title="node pointer">m_nodes</a>(nodes), <a class="code" href="structnih_1_1cuda_1_1_kd__context_1_1_context.html#af85c642b05e2609db593665f85c5f202" title="leaf pointer">m_leaves</a>(leaves), <a class="code" href="structnih_1_1cuda_1_1_kd__context_1_1_context.html#ad4978b7974dc7a2e14e9b3349318a35b" title="range pointer">m_ranges</a>( ranges ) {}
<a name="l00054"></a>00054 
<a name="l00056"></a><a class="code" href="structnih_1_1cuda_1_1_kd__context_1_1_context.html#abea9761aabae14fab3ab99ba17a7bf07">00056</a>         NIH_HOST_DEVICE <span class="keywordtype">void</span> <a class="code" href="structnih_1_1cuda_1_1_kd__context_1_1_context.html#abea9761aabae14fab3ab99ba17a7bf07" title="write a new node">write_node</a>(<span class="keyword">const</span> uint32 node, <span class="keyword">const</span> uint32 offset, <span class="keyword">const</span> uint32 skip_node, <span class="keyword">const</span> uint32 begin, <span class="keyword">const</span> uint32 end, <span class="keyword">const</span> uint32 split_index, <span class="keyword">const</span> uint32 split_dim, <span class="keyword">const</span> <span class="keywordtype">float</span> split_plane)
<a name="l00057"></a>00057         {
<a name="l00058"></a>00058             <a class="code" href="structnih_1_1cuda_1_1_kd__context_1_1_context.html#a2581fa4e72d9795595bcf20af9f67957" title="node pointer">m_nodes</a>[ node ] = <a class="code" href="structnih_1_1_kd__node.html">Kd_node</a>( split_dim, split_plane, offset );
<a name="l00059"></a>00059 
<a name="l00060"></a>00060             <span class="keywordflow">if</span> (<a class="code" href="structnih_1_1cuda_1_1_kd__context_1_1_context.html#ad4978b7974dc7a2e14e9b3349318a35b" title="range pointer">m_ranges</a>)
<a name="l00061"></a>00061                 <a class="code" href="structnih_1_1cuda_1_1_kd__context_1_1_context.html#ad4978b7974dc7a2e14e9b3349318a35b" title="range pointer">m_ranges</a>[ node ] = make_uint2( begin, end );
<a name="l00062"></a>00062         }
<a name="l00064"></a><a class="code" href="structnih_1_1cuda_1_1_kd__context_1_1_context.html#a69c7d40b900ad62118b3e4b01ddb45c2">00064</a>         NIH_HOST_DEVICE <span class="keywordtype">void</span> <a class="code" href="structnih_1_1cuda_1_1_kd__context_1_1_context.html#abea9761aabae14fab3ab99ba17a7bf07" title="write a new node">write_node</a>(<span class="keyword">const</span> uint32 node, <span class="keyword">const</span> uint32 offset, <span class="keyword">const</span> uint32 skip_node, <span class="keyword">const</span> uint32 begin, <span class="keyword">const</span> uint32 end)
<a name="l00065"></a>00065         {
<a name="l00066"></a>00066             <a class="code" href="structnih_1_1cuda_1_1_kd__context_1_1_context.html#a2581fa4e72d9795595bcf20af9f67957" title="node pointer">m_nodes</a>[ node ] = <a class="code" href="structnih_1_1_kd__node.html">Kd_node</a>( offset );
<a name="l00067"></a>00067 
<a name="l00068"></a>00068             <span class="keywordflow">if</span> (<a class="code" href="structnih_1_1cuda_1_1_kd__context_1_1_context.html#ad4978b7974dc7a2e14e9b3349318a35b" title="range pointer">m_ranges</a>)
<a name="l00069"></a>00069                 <a class="code" href="structnih_1_1cuda_1_1_kd__context_1_1_context.html#ad4978b7974dc7a2e14e9b3349318a35b" title="range pointer">m_ranges</a>[ node ] = make_uint2( begin, end );
<a name="l00070"></a>00070         }
<a name="l00072"></a><a class="code" href="structnih_1_1cuda_1_1_kd__context_1_1_context.html#adbbe9d72f242cfa2270d3e90cbd1bb60">00072</a>         NIH_HOST_DEVICE <span class="keywordtype">void</span> <a class="code" href="structnih_1_1cuda_1_1_kd__context_1_1_context.html#adbbe9d72f242cfa2270d3e90cbd1bb60" title="write a new leaf">write_leaf</a>(<span class="keyword">const</span> uint32 index, <span class="keyword">const</span> uint32 begin, <span class="keyword">const</span> uint32 end)
<a name="l00073"></a>00073         {
<a name="l00074"></a>00074             <a class="code" href="structnih_1_1cuda_1_1_kd__context_1_1_context.html#af85c642b05e2609db593665f85c5f202" title="leaf pointer">m_leaves</a>[ index ] = make_uint2( begin, end );
<a name="l00075"></a>00075         }
<a name="l00076"></a>00076 
<a name="l00077"></a><a class="code" href="structnih_1_1cuda_1_1_kd__context_1_1_context.html#a2581fa4e72d9795595bcf20af9f67957">00077</a>         <a class="code" href="structnih_1_1_kd__node.html">Kd_node</a>*        <a class="code" href="structnih_1_1cuda_1_1_kd__context_1_1_context.html#a2581fa4e72d9795595bcf20af9f67957" title="node pointer">m_nodes</a>;    
<a name="l00078"></a><a class="code" href="structnih_1_1cuda_1_1_kd__context_1_1_context.html#af85c642b05e2609db593665f85c5f202">00078</a>         uint2*          <a class="code" href="structnih_1_1cuda_1_1_kd__context_1_1_context.html#af85c642b05e2609db593665f85c5f202" title="leaf pointer">m_leaves</a>;   
<a name="l00079"></a><a class="code" href="structnih_1_1cuda_1_1_kd__context_1_1_context.html#ad4978b7974dc7a2e14e9b3349318a35b">00079</a>         uint2*          <a class="code" href="structnih_1_1cuda_1_1_kd__context_1_1_context.html#ad4978b7974dc7a2e14e9b3349318a35b" title="range pointer">m_ranges</a>;   
<a name="l00080"></a>00080     };
<a name="l00081"></a>00081 
<a name="l00089"></a><a class="code" href="structnih_1_1cuda_1_1_kd__context.html#aad6e96c8b13921717365ad860e6620af">00089</a>     <a class="code" href="structnih_1_1cuda_1_1_kd__context.html#aad6e96c8b13921717365ad860e6620af">Kd_context</a>(
<a name="l00090"></a>00090         thrust::device_vector&lt;Kd_node&gt;* nodes,
<a name="l00091"></a>00091         thrust::device_vector&lt;uint2&gt;*   leaves,
<a name="l00092"></a>00092         thrust::device_vector&lt;uint2&gt;*   ranges) :
<a name="l00093"></a>00093         m_nodes( nodes ), m_leaves( leaves ), m_ranges( ranges ) {}
<a name="l00094"></a>00094 
<a name="l00097"></a><a class="code" href="structnih_1_1cuda_1_1_kd__context.html#a8773a94cb2efb9297e2a2b7f1e772d77">00097</a>     <span class="keywordtype">void</span> <a class="code" href="structnih_1_1cuda_1_1_kd__context.html#a8773a94cb2efb9297e2a2b7f1e772d77">reserve_nodes</a>(<span class="keyword">const</span> uint32 n)
<a name="l00098"></a>00098     {
<a name="l00099"></a>00099         <span class="keywordflow">if</span> (m_nodes-&gt;size() &lt; n) m_nodes-&gt;resize(n);
<a name="l00100"></a>00100         <span class="keywordflow">if</span> (m_ranges &amp;&amp; m_ranges-&gt;size() &lt; n) m_ranges-&gt;resize(n);
<a name="l00101"></a>00101     }
<a name="l00102"></a>00102 
<a name="l00105"></a><a class="code" href="structnih_1_1cuda_1_1_kd__context.html#a27ff1671ea464db8f1250f42229b5d1c">00105</a>     <span class="keywordtype">void</span> <a class="code" href="structnih_1_1cuda_1_1_kd__context.html#a27ff1671ea464db8f1250f42229b5d1c">reserve_leaves</a>(<span class="keyword">const</span> uint32 n) { <span class="keywordflow">if</span> (m_leaves-&gt;size() &lt; n) m_leaves-&gt;resize(n); }
<a name="l00106"></a>00106 
<a name="l00109"></a><a class="code" href="structnih_1_1cuda_1_1_kd__context.html#a0675465ac211dc183a1f3d3fe4533d26">00109</a>     <a class="code" href="structnih_1_1cuda_1_1_kd__context_1_1_context.html" title="Cuda accessor struct.">Context</a> <a class="code" href="structnih_1_1cuda_1_1_kd__context.html#a0675465ac211dc183a1f3d3fe4533d26">get_context</a>()
<a name="l00110"></a>00110     {
<a name="l00111"></a>00111         <span class="keywordflow">return</span> <a class="code" href="structnih_1_1cuda_1_1_kd__context_1_1_context.html" title="Cuda accessor struct.">Context</a>(
<a name="l00112"></a>00112             thrust::raw_pointer_cast( &amp;m_nodes-&gt;front() ),
<a name="l00113"></a>00113             thrust::raw_pointer_cast( &amp;m_leaves-&gt;front() ),
<a name="l00114"></a>00114             m_ranges ? thrust::raw_pointer_cast( &amp;m_ranges-&gt;front() ) : NULL );
<a name="l00115"></a>00115     }
<a name="l00116"></a>00116 
<a name="l00117"></a>00117     thrust::device_vector&lt;Kd_node&gt;*  m_nodes;
<a name="l00118"></a>00118     thrust::device_vector&lt;uint2&gt;*    m_leaves;
<a name="l00119"></a>00119     thrust::device_vector&lt;uint2&gt;*    m_ranges;
<a name="l00120"></a>00120 };
<a name="l00121"></a>00121 
<a name="l00125"></a>00125 } <span class="comment">// namespace cuda</span>
<a name="l00126"></a>00126 } <span class="comment">// namespace nih</span>
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